My intention is to implement it myself. I was wondering whether to go plain old callback way where a subscriber can subscribe to a topic and callback is fired when a topic is updated. I was really wondering how to utilize go's channels to improve this pattern and gain performance.
My final intention is to implement a pub/sub server myself for fun :) On Monday, March 11, 2019 at 10:29:33 AM UTC+5:30, Marcin Romaszewicz wrote: > > Channels are producer/consumer queues, they don't handle one to many > broadcasting, you'd need one channel per subscriber then you'd queue the > message to each of them. In my opinion, they work more nicely than > callbacks, since your handler can run in its own execution context, and not > in the callback invoker's execution context. They are really nice for round > robin between multiple receivers, though. > > Why write it yourself? Check out the Go bindings for Zeromq > <http://zeromq.org/bindings:go>, which supports pub-sub in exactly the > way you mention. I've used this thing in production to route > 200,000 > pub/sub messages per second. It may be overkill if you're within a single > process, though. > > -- Marcin > > > On Sun, Mar 10, 2019 at 9:41 PM Kasun Vithanage <alan...@gmail.com > <javascript:>> wrote: > >> Hi all, >> >> I've experience implementing event buses in Java. >> In Java, I used a singleton where I can register callbacks to methods and >> fire event from a publisher(maybe from another thread) and propagate it to >> subscribers. >> >> In Go what would be the best pattern to implement a pub/sub event bus? >> Are channels are a better choice than using callbacks in this scenario(*one >> to many* event propagation)? >> Or callbacks are better for this? >> >> (I need to propagate events *only* to subscribers of the topic) >> >> Regards, >> Kasun >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
